如何仅映射HashMap - Hibernate的值

@Entity
public class User {
    @Id
    private Long id;
    
    @ElementCollection
    private Map<String, String> values;
    
    // 其他属性和方法
}

@ElementCollection
private Map<String, String> values;

@ElementCollection
@CollectionTable(name = "user_values")
private Map<String, String> values;

@ElementCollection
@CollectionTable(name = "user_values")
@MapKeyColumn(name = "key")
private Map<String, String> values;

@ElementCollection
@CollectionTable(name = "user_values")
@MapKeyColumn(name = "key")
@Column(name = "value")
private Map<String, String> values;